title: Direct amplification of ultrashort pulses in μ-pulling-down Yb:YAG single crystal fibers.
abstract: We demonstrated that Yb:YAG single crystal fibers have a strong potential for the amplification of femtosecond pulses. Seeded by 230 fs pulses with an average power of 400 mW at 30 MHz delivered by a passively mode-locked Yb:KYW oscillator, the system produced 330 fs pulses with an average power of 12 W. This is the shortest pulse duration ever produced by an Yb:YAG amplifier. The gain in the single crystal fiber reached a value as high as 30 in a simple double-pass configuration.
authors.affiliation: Amplitude Systemes, Pessac, France. yzaouter@amplitude‐systemes.com
authors.forename: Yoann
authors.initials: Y
authors.lastname: Zaouter
authors.forename: Igor
authors.initials: I
authors.lastname: Martial
authors.forename: Nicolas
authors.initials: N
authors.lastname: Aubry
authors.forename: Julien
authors.initials: J
authors.lastname: Didierjean
authors.forename: Clemens
authors.initials: C
authors.lastname: Hönninger
authors.forename: Eric
authors.initials: E
authors.lastname: Mottay
authors.forename: Frederic
authors.initials: F
authors.lastname: Druon
authors.forename: Patrick
authors.initials: P
authors.lastname: Georges
authors.forename: François
authors.initials: F
authors.lastname: Balembois